/**
* Merge user defined arguments into defaults array.
*
* This function is used to allow for both string or array
* to be merged into another array.
*
*
* @param string|array $args Value to merge with $defaults
* @param array $defaults Array that serves as the defaults.
* @return array Merged user defined values with defaults.
*/
function cm_parse_args($args, $defaults = '')
{
if (is_object($args)) {
$r = get_object_vars($args);
} elseif (is_array($args)) {
$r =& $args;
} else {
cm_parse_str($args, $r);
}
if (is_array($defaults)) {
return array_merge($defaults, $r);
}
return $r;
}
/**
* Retrieve a modified URL query string.
*
* You can rebuild the URL and append a new query variable to the URL query by
* using this function. You can also retrieve the full URL with query data.
*
* Adding a single key & value or an associative array. Setting a key value to
* emptystring removes the key. Omitting oldquery_or_uri uses the $_SERVER
* value.
*
* @since 1.5.0
*
* @param mixed $param1 Either newkey or an associative_array
* @param mixed $param2 Either newvalue or oldquery or uri
* @param mixed $param3 Optional. Old query or uri
* @return string New URL query string.
*/
function add_query_arg()
{
$ret = '';
if (is_array(func_get_arg(0))) {
if (@func_num_args() < 2 || false === @func_get_arg(1)) {
$uri = $_SERVER['REQUEST_URI'];
} else {
$uri = @func_get_arg(1);
}
} else {
if (@func_num_args() < 3 || false === @func_get_arg(2)) {
$uri = $_SERVER['REQUEST_URI'];
} else {
$uri = @func_get_arg(2);
}
}
if ($frag = strstr($uri, '#')) {
$uri = substr($uri, 0, -strlen($frag));
} else {
$frag = '';
}
if (preg_match('|^https?://|i', $uri, $matches)) {
$protocol = $matches[0];
$uri = substr($uri, strlen($protocol));
} else {
$protocol = '';
}
if (strpos($uri, '?') !== false) {
$parts = explode('?', $uri, 2);
if (1 == count($parts)) {
$base = '?';
$query = $parts[0];
} else {
$base = $parts[0] . '?';
$query = $parts[1];
}
} elseif (!empty($protocol) || strpos($uri, '=') === false) {
$base = $uri . '?';
$query = '';
} else {
$base = '';
$query = $uri;
}
cm_parse_str($query, $qs);
$qs = urlencode_deep($qs);
// this re-URL-encodes things that were already in the query string
if (is_array(func_get_arg(0))) {
$kayvees = func_get_arg(0);
$qs = array_merge($qs, $kayvees);
} else {
$qs[func_get_arg(0)] = func_get_arg(1);
}
foreach ((array) $qs as $k => $v) {
if ($v === false) {
unset($qs[$k]);
}
}
$ret = build_query($qs);
$ret = trim($ret, '?');
$ret = preg_replace('#=(&|$)#', '$1', $ret);
$ret = $protocol . $base . $ret . $frag;
$ret = rtrim($ret, '?');
return $ret;
}
